As you can see, there is no width parameter set up but setting one up doesn't help anything, because whenever I hover the primary menu item which opens its submenu, it adds inline style so it looks like this:<ul class="sub-menu" style="float: none; width: 12em; visibility: hidden; display: none; ">

Is there any way I could override or change the 12em width? I can't find where is that 12em width set.